Problem with a free .NET hosting service I used

Question

1.00/5 (1 vote)

See more:

Hello all

Few days ago I deployed an ASP.NET application on the free .NET hosting Somee.com for testing purposes before deploying on paid hosting, but part of my application uses Excel interop using Microsoft.Office.Interop.Excel . The problem is that the web server crashes with the following message:

Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

The solution I found is to configure IIS to run 32 bit application but I don't have access to the IIS server I'm using!

I'm using Excel Interop because of its flexibility in creating the excel file, formatting and editing the cells, etc. but I could not find any source code or library that has same (or at least near) capabilities. Most of the code I found, especially here on codeproject.com, creates the file and downloads it directly, I want to store it to a folder first. Any help is really appreciated!

The website is nearly done and I need to test the excel part since it's working on the integrated ASP.NET development server.

Posted 21-Jul-14 2:15am

Abdallah Al-Dalleh

Updated 21-Jul-14 2:16am

v2

Add a Solution

Comments

[no name] 21-Jul-14 8:17am

This is exactly the reason that Microsoft tells you not to do this and won't support it. You need to change to something that does not rely on Excel being installed on the computer.

Abdallah Al-Dalleh 21-Jul-14 8:24am

Sorry man, didn't understand a letter of your comment :|

[no name] 21-Jul-14 9:14am

If you do not understand a simple thing like "You cannot do that", then how do you expect to understand anything more technical?

Abdallah Al-Dalleh 21-Jul-14 9:20am

Sorry :P Just installed NuGET Package Manager and it workd! :D
Now to deploy it and see if it works

2 solutions

Solution 1

You can't use Excel interop unless Excel is installed on the server computer: and even for a paid service this is unlikely. Installing Office products on any server system is unusual as users don't get a chance to go near them (thankfully) :laugh:

You would be a lot, lot better off finding a different way to do this - Excel is unlikely ever to be available to your website.

Posted 21-Jul-14 2:29am

OriginalGriff

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

AnvilRanger · Accepted Answer · 2014-07-21T02:31:00

Solution 2

The issue is that in order to use Excel Interop Excel must be installed on the server. I highly doubt any free host or any shared hosting will allow that. It causes more problem than benefits. Wes is correct that Microsoft does not support interop.

There are several free and open source solutions that work well The following link list a couple

http://stackoverflow.com/questions/151005/create-excel-xls-and-xlsx-file-from-c-sharp[^]

Posted 21-Jul-14 2:31am

AnvilRanger

Comments

Abdallah Al-Dalleh 21-Jul-14 8:45am

How to add reference to those dll for use on the server ? remember this is a free hosting and not much features are available

AnvilRanger 21-Jul-14 9:01am

Both are available as nuget packages. You add them to your solution and build just like any other component. The assemblies will be copied to the bin folder of your projects and deployed.

Abdallah Al-Dalleh 21-Jul-14 9:11am

Any tutorials ? haven't dealt with "NuGet" Before.

Abdallah Al-Dalleh 21-Jul-14 10:02am

This EPPlus SDK is super !! It has almost the same operation as Excel Interop. The report was generated successfully! now deploying to the web server with NuGET packages and testing. THANKS A LOT MAN !! =)